Machine for dressing circular sash



UNITED sTATEs PATENT oEEIcE.

LEONARD GILSON, OF BRIGHTON, MASSACHUSETTS.

MACHINE FOR DRESSING CIRCULAR SASH, &c.

Specification of Letters Patent No. 10,230, dated November 15, 1853.

T0 all whom t may concern:

Be it known that I, LEONARD GILsoN, of Brighton, in the county of Middlesex and State of Massachusetts, have invented new and useful improvements in machines which I call finishers for smoothing clapboards, trying outdoor' stuff, working out moldings and circular sash, and all articles necessary to finish a house; and I do hereby declare that the following is a full, clear, and exact description of the construction and opera. tion of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l is a plan, Fig. 2 is a side elevation, Fig. 3 is an end elevation, Fig. 4 is a plan of the bed and cutter with an apparatus attached for working out circles, Fig. 5 is an end view of the bed and cutter with the circular apparatus attached, Fig. 6 is a view of the carriage and cutter with the face of the bed turned up parallel to the cutter, Fig. 7

. D, secured firmly to the frame, A, A, with a cutter frame, E, made to slide back and forth, to suit the proper dimensions of the stuff to be tried out; and when the said cutter frame is set in its proper position, it is secured firmly to the cross frame by bolts, F, F. There is a shaft, G, with journals fitted to revolve in boxes, H, II, on the cutter frame; and one or more cutters, I, I, on the center of the said shaft, and a pulley, J, on the lower end to drive the said cutters; the edge of the cutters can be made straight, or in a form suitable to cut any shaped molding required. There is a carriage, K, the under side of which has longitudinal grooves, L, L, fitted to the top edges of the frame, A, A, to guide it as it runs back and forth: there is also a slide, M, at the upper ex trelnity of the carriage extending its whole length, or more, and fitted to run in a groove, N, in the cross frame, for the purpose of more 'effectually guiding the carriage while in motion. riage there is a bed frame, O, and an adjust- Connected with the carable bed plate, P, both made to turn up and down together on the same axis by means of two or more pins, Q, Q, near the front edge of the carriage; but the adjustable bed plate can be so constructed as to turn on a separate axis, placed in the bed frame, if required, this, however, I consider a mechanical equivalent. The bed plate is adjusted by means of set screws, R, It, near the back edge, tapped through the said bed plate with their points resting on the bed frame; and bv turning these set screws the bed plate can be raised, or lowered, from the bed frame, thereby making it capable of being set to any point ofv nlcety required; it is then secured in its proper position by bolts, S, S, extending through the bed plate into the bed frame. Above the bed plate there are two or more levers, T, T, hung by a pin, U, to stands, V, V, rising from the back of the bed fra-me, and a clamp W, is hung by a pin, X, to the forward end of each lever; this clamp has two ears projecting from the upper side, their distance apart being suflicient to receive the end of the lever between them; the pin, X, runs through the ears of the clamp and also through the end of the lever giving the said clamp a chance to swing on the said pin, X, so that the clamp will naturally hang with its under surface parallel to the upper surface of the bed plate when raised above the said bed plate. The advantage in hanging the clamp to the lever in this way is that the under surface of the clamp will favor itself to the upper surface of different thicknesses of stuff, or to inclined surfaces such as clapboard. The fulcrum of the lever T, is at the pin U, and the back end of the lever extends a little beyond its fulcrum; and directly under the back end of each lever there is a set screw, Y, which screws up against the lever and presses the plate, W, down on to the stuff, holding it firmly to the bed plate while it passes by the cutters. The set screw, Y, is tapped into a nut, a, which is hung in ears, b, b, projecting from the back side of the bed frame. In order to swing the bed up and down I place a short shaft, c, in the lower part of Q, which meshes into the pinion, d, and by turning the wheel, e, the bed frame together with the bed plate can be turned up at any angle required, fro-m a right angle to an angle of forty-five degrees from the cutters.

In Fig. 7 the bed frame and bed plate are turned up at an angle of forty-five degrees and secured in that position by a bolt, g, at each end of the carriage passing through a hole in the end of the carriage and screwed into the end of the bed frame.

In Figs. 3, 6 and 7 there is a series of holes, L, z', &c. in each end of the carriage for the reception of a bolt, g, by which the bed frame can be secured at different angles; then by means of the set screws, R, R, the bed plate can be adjusted as occasion may require.

In Figs. l, 2 and 3 the bed frame and bed plate are turned down in their lowest position or at right angles with the cutters and secured in that position by bolts, g, g.

In Fig. 6 the bed frame and bed plate are turned up in vertical position or parallel to the cutters and secured firmly in that position by a bar, y', at each end of the carriage; one end of the said bar being connected to the bed frame by the bolt, g, and the other end of the carriage by a bolt, 7c. When the bed is in a vertical position the levers, T, T, the set screws, Y, Y, and

. the stands, V, V, are removed, and two o-r more springs, Z Z, are used to press the stuff firmly against the bed while it is passing by the cutters. The said springs are secured by bolts, m, m, to the cutter frame and extend out on a circle, each side of the cutters, to the bed. Thus, by arranging the bed and carriage as above described, a piece of stuff can be worked out perfectly'square, or shaped to any angle required. To drive the carriage back and forth a horizontal feed shaft, n, is hung near the center, and cross ways, of the frame, A, lwith a pinion, 0, on one end, and a clutch, p, on the center; the pinion, 0, is fitted to mesh into a rack, g, which is attached to the under side of the carriage; the said rack extending the who-le length or more of the carriage; the clutch is fitted to slide a short distance on the shaft, and by means of a spline is made to revolve with it; on the inner end of this shaft, a short distance from the clutch, there is a small loose pulley, r, and between ythe clutch and pinion there is a larger loose pulley, s; there is a shipper, t, by which the clutch is made to slide back and forth on the shaft, to clutch either of the pulleys as occasio-n may require. In the forward par't of the machine, there is a horizontal lnain shaft, u, with journals fitted to revolve in boxes, o, lv, on the stand, B; near the center of ythis shaft there is a driving pulley, fw, and at the end of the driving pulley there is a small pulley, 0a, directly opposite the small loose cutter.

pulley, r, on the feed shaft. There is an open belt, y, running from the pulley, to the pulley, r, to run the carriage back, and a cross belt, r, running from the larger locsepulley, s, to the main shaft, to feed the carriage forward. On the outer end of the main shaft, outside of the frame, there is a pulley, a3, on which a belt, b3, is placed running to the cutter pulley, J, to drive the cutters; the belt, b3, runs from the top of the pulley, a3, to the inside of the cutter pulley, and from the outside of the cutter pulley to the under side of the pulley, a3. lhen the main shaft is set in motion the belt, b3, drives the cutters; and the cross belt, z, feeds the carriage forward when the clutch is moved against the pulley, s, and when the clutch is removed from the pulley, s, and brought in contact with the pulley, r, the carriage is made to run back; and when the clutch is removed from both pulleys, to a central point between them, so as not to come in contact with either, the carriage remains still. vWhen it is designed to make circular work the carriage is placed on the center of the frame and secured in that position by a set screw, c3, in the top of the cross frame; the bed is then turned down at right angles with the cut-ters, and the levers, T, T, are removed, and an angle frame, cl3, is placed upon the bed plate, as represented in Figs. 4L and 5. The angle frame has a bolt, e3, in its vertex extending down through a slit, f3, in the bed plate with a nut, g, (Fig. 5,) on the lower end of it, under the bed plate; the slit in the bed plate is made long, so as to admit the bolt to slip back and forth, together with the angle fram'e, to sluit different sized circles; when the angle frame is placed in the proper position to suit the circle to be worked, the belt, c3, is screwed up and held firmly to the bed plate whereby forming an axis on which the angle frame is made to turn. One leg of the angle frame has a joint, h3, in it near the vertex to increase or diminish the angle for the purpose of adjusting it to long or short segments. The legs of this angle frame project out by the cutter one leg one side of the cutter and the other leg the other side of the cutter and are designed to open far enough to admitI of smoothing short stu, on a circle, without the legs coming in contact with the When it is designed to work olf, or smooth the outer edge of the short segment the axis ofthe angle frame is placed, from the inside edge of the cutter, a distance equal to the radius of the circle to be worked; the legs of the angle frame are then set at a proper distance apart and a segment plate 3, bolted on, to them, inside of the cutter. The stuff to be worked is laid upon the segment plate and secured thereto by bolts, dogs, or any of the usual methods, then by taking hold of one leg of the angle frame and swinging it around the studil passes by the cutters and is smoothed off to the circle required. Then it is designed to vvorlroitl the inside edge of a circular piece of stuff, such as the felly of a Wheel, the axis of the angle frame is placed, from the outside edge of the cutter, a distance equal to the radius of the circle required; the legs of the angle frame are then adjusted as before and a segment plate jg, corresponding with the circle required, bolted on to them outside of the cutter, the stuff is then secured to the segment plate and passed by the cutter as before. There should be several sizes of segment plates to suit different sizes of circles and changed accordingly.

What I claim as my invention, and desire to secure by Letters Patent is* 1. I claim the swing bed ,frame and adjustable bed plate in combination with the lever T, clamps XV, and set screws Y, substantially in the manner and for the purpose herein set forth.

2. I claim an angle frame With a joint at, or near, the vertex to increase or diminish the angle, With a movable segment plate thereon, in combination With the bed plate and cutter, for circular work as herein de- 30 scribed.

LEONARD GILSON.

lVitnesses CHARLES lV. HAWKES, HARVEY JEWELL. 

